I had to say that because you're gonna be my sister-in-law.
3 seconds sound clip from the While You Were Sleeping (1995) movie soundboard.
You can hear this line at 01:29:05.175 in the Blu-ray version of the movie.
Quote context
[...]
- Wow. So that's the wedding dress, huh?
- Hmm?
- The wedding dress. It works good as a tie, too.
- Yeah.
- I just wanted to give you this before all the presents started to pile up.
- I was dropping off some furniture in Little Italy, I look in a window, and...
- Thank you. It's really beautiful.
- And I wanted to say that I think that Peter is a very lucky guy.
- I had to say that because you're gonna be my sister-in-law.
- Ha, ha, ha. I guess we'll be seeing a lot of each other then.
- Yeah.
- Can you give me any reason why I shouldn't marry your brother?
- I can't.
- Wait a minute. This is your wedding invitation.
- So?
[...]